• synonyms


[oh-lee-uh m]
noun, plural o·le·a [oh-lee-uh] /ˈoʊ li ə/ for 1, o·le·ums for 2.
  1. Pharmacology. oil.
  2. Chemistry. pyrosulfuric acid.
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Origin of oleum

1900–05; < Latin: oil
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for olea

Historical Examples of olea

  • After killing two of the Aztecs, Olea fell mortally wounded.

    The White Conquerors

    Kirk Munroe

  • Olea europæa, Oryza sativa, Solanum tuberosum, Vitis vinifera.

    Origin of Cultivated Plants

    Alphonse De Candolle

  • "Come, seor Gaspar," continued the Alguazil, turning to Olea.

    The Infidel, Vol. I.

    Robert Montgomery Bird

  • Some punster will say, respecting oleaster, that it is olea sterilis.

  • Olea cuspidata was seen lower down, and a species of alder grew in shady ravines along the edge of the stream.

British Dictionary definitions for olea


  1. a plural of oleum
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noun plural olea (ˈəʊlɪə) or oleums
  1. another name for fuming sulphuric acid
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Word Origin for oleum

from Latin: oil, referring to its oily consistency
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012